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Title: Identification of Excited States in the T{sub z}=1 Nucleus {sup 110}Xe: Evidence for Enhanced Collectivity near the N=Z=50 Double Shell Closure

Abstract

Gamma-ray transitions have been identified for the first time in the extremely neutron-deficient (N=Z+2) nucleus {sup 110}Xe, and the energies of the three lowest excited states in the ground-state band have been deduced. The results establish a breaking of the normal trend of increasing first excited 2{sup +} and 4{sup +} level energies as a function of the decreasing neutron number as the N=50 major shell gap is approached for the neutron-deficient Xe isotopes. This unusual feature is suggested to be an effect of enhanced collectivity, possibly arising from isoscalar n-p interactions becoming increasingly important close to the N=Z line.

Authors:
; ; ; ; ;  [1];  [2]; ; ; ; ; ; ;  [3]; ; ; ; ; ;  [4]
  1. Department of Physics, The Royal Institute of Technology, S-10691 Stockholm (Sweden)
  2. Science Faculty, Physics Department, Istanbul University, 34459 Istanbul (Turkey)
  3. Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE (United Kingdom)
  4. Department of Physics, University of Jyvaeskylae, FIN-40014 Jyvaeskylae (Finland)
Publication Date:
OSTI Identifier:
20957873
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 99; Journal Issue: 2; Other Information: DOI: 10.1103/PhysRevLett.99.022501; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; EXCITED STATES; GAMMA RADIATION; GROUND STATES; NEUTRONS; SHELL MODELS; XENON 110

Citation Formats

Sandzelius, M, Hadinia, B, Cederwall, B, Andgren, K, Khaplanov, A, Wyss, R, Ganioglu, E, Darby, I G, Dimmock, M R, Joss, D T, Nelson, L, Page, R D, Paul, E S, Petri, M, Eeckhaudt, S, Grahn, T, Greenlees, P T, Jones, P M, Julin, R, and Juutinen, S. Identification of Excited States in the T{sub z}=1 Nucleus {sup 110}Xe: Evidence for Enhanced Collectivity near the N=Z=50 Double Shell Closure. United States: N. p., 2007. Web. doi:10.1103/PHYSREVLETT.99.022501.
Sandzelius, M, Hadinia, B, Cederwall, B, Andgren, K, Khaplanov, A, Wyss, R, Ganioglu, E, Darby, I G, Dimmock, M R, Joss, D T, Nelson, L, Page, R D, Paul, E S, Petri, M, Eeckhaudt, S, Grahn, T, Greenlees, P T, Jones, P M, Julin, R, & Juutinen, S. Identification of Excited States in the T{sub z}=1 Nucleus {sup 110}Xe: Evidence for Enhanced Collectivity near the N=Z=50 Double Shell Closure. United States. https://doi.org/10.1103/PHYSREVLETT.99.022501
Sandzelius, M, Hadinia, B, Cederwall, B, Andgren, K, Khaplanov, A, Wyss, R, Ganioglu, E, Darby, I G, Dimmock, M R, Joss, D T, Nelson, L, Page, R D, Paul, E S, Petri, M, Eeckhaudt, S, Grahn, T, Greenlees, P T, Jones, P M, Julin, R, and Juutinen, S. 2007. "Identification of Excited States in the T{sub z}=1 Nucleus {sup 110}Xe: Evidence for Enhanced Collectivity near the N=Z=50 Double Shell Closure". United States. https://doi.org/10.1103/PHYSREVLETT.99.022501.
@article{osti_20957873,
title = {Identification of Excited States in the T{sub z}=1 Nucleus {sup 110}Xe: Evidence for Enhanced Collectivity near the N=Z=50 Double Shell Closure},
author = {Sandzelius, M and Hadinia, B and Cederwall, B and Andgren, K and Khaplanov, A and Wyss, R and Ganioglu, E and Darby, I G and Dimmock, M R and Joss, D T and Nelson, L and Page, R D and Paul, E S and Petri, M and Eeckhaudt, S and Grahn, T and Greenlees, P T and Jones, P M and Julin, R and Juutinen, S},
abstractNote = {Gamma-ray transitions have been identified for the first time in the extremely neutron-deficient (N=Z+2) nucleus {sup 110}Xe, and the energies of the three lowest excited states in the ground-state band have been deduced. The results establish a breaking of the normal trend of increasing first excited 2{sup +} and 4{sup +} level energies as a function of the decreasing neutron number as the N=50 major shell gap is approached for the neutron-deficient Xe isotopes. This unusual feature is suggested to be an effect of enhanced collectivity, possibly arising from isoscalar n-p interactions becoming increasingly important close to the N=Z line.},
doi = {10.1103/PHYSREVLETT.99.022501},
url = {https://www.osti.gov/biblio/20957873}, journal = {Physical Review Letters},
issn = {0031-9007},
number = 2,
volume = 99,
place = {United States},
year = {Fri Jul 13 00:00:00 EDT 2007},
month = {Fri Jul 13 00:00:00 EDT 2007}
}